[HO455]

As far as I know the bolt on yoke was a 4x4 item only. The bolt on yoke was at the transfer case output shaft.
Most 1/2 ton trucks (automatics with coil springs) with a 2 piece drive shaft have to have a sliding yoke. The sliding yoke is where the length adjustment occurs as the suspension moves up and down causing the driveline to move fore and aft. A bolt on yoke would not slide in and out. The carrier bearing is mounted in a large rubber bushing that allows the bearing to move fore and aft with the driveline.
On 2 wheel drive leaf spring trucks and 3/4 ton coil spring trucks with 2 piece drivelines have a splined sliding joint in the rear driveline. On those trucks the carrier bearing is fixed not rubber mounted. The fixed bearing means the front driveline does not move fore and aft. Thus the splined sliding joint is where the fore and aft movement is absorbed.
If your truck is not lowered a lot you should have no problem running the stock 2 piece set up. If it is lowered a fair amount you might benefit from a different drive shaft configuration.
The advantages of one piece driveline is cost. But if you convert to a yoke style the cost will go up as the drive shaft will have a sliding joint built into it.
In addition not all Th400 output shafts are drilled and tapped for a bolt on yoke.